Publication 1794-6.5.12 - November 1997
Calibrating Your Module
6
-3
Calibration Setups
Wiring Connections for Calibrating the TC/RTD/mV Input
Module
1
2
3
4
5
6
7 8
9 10
11
12
13
14
15
0
Using Precision Resistors -
for 383
W
and 100
W
calibration
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
16
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
34
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
16
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
0
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
34
1794-TB3G
Precision Voltage Source
Using Precision Voltage Source -
for offset and gain calibration
+
-
C to terminals 2, 6, 10, 14, 19, 23, 27, and 31
Connect - to terminals 3, 7, 11, 15, 20, 21, 28 and 32
Connect one 10K ohm, 0.5% resistor across terminals 37 and 39 and another across 46 and 48.
Type of Input
Connect the following:
H
L
+
–
Shield
1
RTD – 4-wire
1a
2a
1
2
Millivolt
1
2
1
Terminals 37, 38 and 39 and 46, 47 and 48 are for cold junction compensation (with 38 and 47 chassis GND).
RTD or
Thermocouple
Channel
1794-TB3G and -TB3GS Terminal Base Units
High Signal
Terminal (H)
Low Signal
Terminal (L)
RTD Source
Current (+)
Signal Return
1
(–)
0
1
2
0
3
1
5
6
4
7
2
9
10
8
11
3
13
14
12
15
4
18
19
17
20
5
22
23
21
24
6
26
27
25
28
7
30
31
29
32
+24V dc Power
34 and 50
24V dc Common
35 and 51
1
Terminals 37, 38 and 39 and 46, 47 and 48 are for cold junction compensation (with 38 and 47 chassis GND).
2
Terminals 16, 33 and 40 thru 45 are chassis ground.
Содержание 1794-IRT8
Страница 1: ...User Manual Thermocouple RTD Millivolt Input Module Cat No 1794 IRT8 Allen Bradley Allen Bradley PLCs ...
Страница 3: ...Publication 1794 6 5 12 November 1997 2 Allen Bradley PLCs ...
Страница 7: ...Publication 1794 6 5 12 November 1997 P 4 Using This Manual Allen Bradley PLCs ...
Страница 33: ...Publication 1794 6 5 12 November 1997 3 6 Programming Your Thermocouple RTD Input Module Allen Bradley PLCs ...
